Specification :

HYPOPHOSPHOROUS ACID 50% (H3PO2)
CAS No. 6303-21-5
Appearance: colorless or slightly yellow liquid
Solubility: miscible in water
H3PO2 content: 50% min.
H3PO3: 0.5% max.
Na: 1.0% max.
Fe: 0.005% max.
Sulfate and chloride: 0.05% max.
Application: used as reducing agent, analysis reagent etc.
Package: 50kg or 250kg per plastic drum, or IBC drum

65%
Appearance: colorless or slightly yellow liquid
Solubility: miscible in water
H3PO2 content: 65% min.
H3PO3: 0.3% max.
Na:0.050% max.
Fe: 0.0008% max.
Sulfate: 0.010% max.
Calcium:0.010%max
Copper:1ppm max
Arsen:1ppm max
Lead:1ppm max
Sb:1ppm max
Colorness(Hazen):Less to 30
Specific Gravity:1.250-1.300
Application: used as reducing agent, analysis reagent etc.
Package: 50kg or 250kg per plastic drum, or IBC drum